JMI Reverse Crayford 2" Focuser with Motor

$296.00

JMI Reverse Crayford 2" Focuser with MotorA 1.25" Reverse Crayford focuser. Motorized version include a standard hand unit. For all RCF focusers you must specify whether you want a flat or curved base. For curved bases, you need to specify the radius. If you don't, you will get the standard size radius. Place a note in the shopping cart Comments area specifying "Flat Base" or "Curved Base" and the appropriate radius for the curved base. (Diameter = 2 x Radius)

What is a Reverse Crayford Focuser?The Reverse Crayford Focuser (RCF) is a light-weight, low-profile focuser with a new revolutionary design — JMI's low-cost, high-quality answer to plastic focusers. In the reverse Crayford design, the drive-shaft pressure is applied to a bar which "pulls" the drawtube against its supporting bearings as apposed to directly "pushing" the drawtube as seen in the normal Crayford design.